2 answers:
A is the ans
3-5.97
13-x
Cross multiply
Answer:
C. 3/$5.79 = 13/x
Step-by-step explanation:
We can write the fact that 3 markers cost $5.79 as a proportion:
3/$5.79
Let x represent the unknown cost of 13 markers. Since 13 markers cost x, we have the following proportion:
13/x
The cost changes along with the number of markers purchased, and so the two proportions are equivalent.
3/$5.79 = 13/x
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Step-by-step explanation:
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Step-by-step explanation:
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